Digital Magnetic Hotplate with Stirrer HPS-20D in Bangladesh

Digital Magnetic hotplate HPS-20D with stirrer is a laboratory heating and stirring instrument designed for applications that require controlled heating together with continuous magnetic mixing. With a ceramic working surface, adjustable stirring speed, digital temperature control and support for an external PT100 temperature sensor, the unit provides a practical solution for routine laboratory sample preparation, solution mixing and reaction work.

For laboratories looking for a professional magnetic hotplate in Bangladesh, the HPS-20D combines heating and magnetic stirring in a single benchtop instrument, reducing the need to operate separate devices for common mixing and heating procedures.

Aston Instruments supplies Testing Meter & Tester equipment and Magnetic Hotplate for customers in Bangladesh. Contact our team to confirm the latest HPS-20D availability, quotation, accessories and technical requirements for your application.

Technical Specifications of HPS-20D Magnetic Hotplate

Specification	HPS-20D
Product Type	Magnetic hotplate stirrer
Model	HPS-20D
Working Surface Size	19 × 19 cm
Working Surface Material	Ceramic
Stirring Speed Range	0–1500 rpm
Temperature Control Range	RT +5°C to 350°C*
Temperature Stability	±3°C
Maximum Stirring Capacity	20 L (20000ml)
External Temperature Sensor	PT100
Temperature Control	PID
Motor Type	DC brushless motor
Power Supply	AC 220V/110V, 50/60Hz
Rated Power	600 W
Product Dimensions	Approx. 190 × 320 × 130 mm
Net Weight	Approx. 5 kg
Origin	Turkey

What Is a Magnetic Hotplate Stirrer?

A magnetic hotplate stirrer HPS-20D combines two laboratory functions in one unit: a heated working surface and a rotating magnetic field.

A magnetic stir bar is placed inside a compatible vessel containing the liquid. When the stirrer operates, the internal magnetic drive rotates the stir bar and mixes the solution. At the same time, the hotplate can heat the vessel when the application requires temperature control.

This makes a magnetic stirrer with hotplate useful where a sample must be mixed continuously while its temperature is being raised or maintained.

How Does the HPS-20D Digital Magnetic Hotplate Work?

HPS-20D creates a rotating magnetic field underneath the working plate. This field drives a magnetic stir bar positioned inside the sample vessel.

The user can adjust the stirring speed according to the liquid volume, viscosity and process requirements.

When heating is required, the ceramic hotplate transfers heat to the vessel while the magnetic stir bar continues mixing the liquid. Continuous agitation can help distribute heat through the solution more uniformly than simply leaving the vessel stationary on a heating surface.

For applications requiring closer monitoring of sample temperature, the HPS-20D is published with an external PT100 temperature sensor.

Key Features of the HPS-20D Magnetic Hotplate

Ceramic Working Surface

The HPS-series uses a ceramic working surface designed to tolerate laboratory heating applications while remaining relatively easy to clean.

The 19 × 19 cm surface also provides useful working space for compatible laboratory vessels.

Why it matters

A laboratory hotplate regularly encounters spills, residues and repeated heating cycles. Surface durability and ease of cleaning therefore matter in day-to-day laboratory operation.

Heating and Stirring at the Same Time

Instead of transferring a vessel between separate heating and mixing devices, the hot plate magnetic stirrer Fcombio HPS-20D allows both functions to occur on the same instrument.

This is useful for applications such as:

• Solution preparation
• Reagent preparation
• Sample dissolution
• Chemical mixing
• Reaction preparation
• Routine laboratory processing

Up to 20 L Stirring Capacity

The HPS-20D is published with a maximum stirring capacity of up to 20 litres.

That makes the model relevant not only to small educational experiments but also to laboratories that periodically work with larger liquid volumes.

Actual practical performance will depend on factors such as vessel shape, stir-bar size, liquid viscosity and operating conditions.

Adjustable Stirring Speed

HPS-20D magnetic stirrer provides a published stirring range of 0–1500 rpm.

Different applications require different agitation levels. Lower speeds may be appropriate where gentle mixing is needed, while higher speeds can be useful where stronger circulation is required.

PID Temperature Control

The HPS series uses PID temperature control with display-based operation.

For laboratory users, this provides a more controlled heating workflow than a basic hotplate with only simple power adjustment.

PT100 External Temperature Sensor

A particularly important difference in the HPS-20D configuration is support for a PT100 external temperature sensor. Public HPS-series specifications associate the PT100 with the HPS-20D model.

Instead of relying only on the heating plate temperature, an external probe can help monitor the temperature of the working medium directly when used correctly.

DC Brushless Motor

HPS-series documentation describes a DC brushless motor intended to provide stable operation with low noise and no sparking from motor brushes. 

This is useful for laboratories where equipment may operate repeatedly over long periods.

Where Can the HPS-20D Digital Magnetic Hotplate Be Used?

A laboratory magnetic hotplate HPS-20D can support many routine laboratory workflows where heating and mixing are both required.

Potential environments include:

Chemical Laboratories

For solution preparation, dissolution and controlled mixing of compatible chemical samples.

Pharmaceutical Laboratories

For formulation development, research, solution preparation and general laboratory mixing tasks.

University & Educational Laboratories

Useful for teaching practical laboratory procedures involving heat transfer, solution preparation and magnetic stirring.

Research Laboratories

Suitable for researchers who need repeatable heating and stirring during sample preparation and experimental workflows.

Quality Control Laboratories

Useful for routine sample and reagent preparation where controlled mixing is part of the QC process.

Industrial Laboratories

Applicable to compatible laboratory-scale development and testing work in manufacturing environments.

The HPS-20D has also been documented in published academic research as a Taisite magnetic stirrer used for laboratory sample preparation, providing additional evidence of real research use of this model.

Who Should Choose the HPS-20D?

The HPS-20D magnetic hotplate deserves consideration when your laboratory needs several of the following characteristics together:

• Heating and magnetic stirring from one unit
• Digital operating controls
• Up to 20 L published stirring capacity
• 0–1500 rpm stirring range
• Ceramic working surface
• External PT100 temperature sensing
• Laboratory-scale continuous mixing
• Benchtop form factor

It may be particularly useful for laboratory managers, technicians, researchers, university laboratories, R&D departments and QC teams.

HPS-20 vs HPS-20D: What Is the Difference?

Both models belong to the same HPS series and share several core characteristics, including the ceramic plate, 19 × 19 cm working area, stirring capability and laboratory hotplate design.

However, published HPS-series documentation identifies an important difference:

Feature	HPS-20	HPS-20D
Ceramic Working Surface	Yes	Yes
Working Area	19 × 19 cm	19 × 19 cm
Speed Range	Up to 1500 rpm	Up to 1500 rpm
Maximum Stir Capacity	20L(20000ml)	20 L(20000ml)
External Sensor	No external sensor listed	PT100
Heating + Stirring	Yes	Yes

The PT100 capability makes the HPS-20D more relevant where monitoring the temperature of the working medium is important. If you’re unsure which version suits your process, send Aston Instruments your sample volume, required temperature range and intended application before ordering.

HPS-20D vs a Standard Magnetic Stirrer

A conventional magnetic stirrer focuses on mixing.

A magnetic stirrer with hotplate, such as the HPS-20D, adds controlled heating.

Choose a basic magnetic stirrer when:

• Your process only requires agitation
• Heating is unnecessary
• Samples remain at room temperature

Consider a HPS-20D magnetic hotplate stirrer when:

• Your sample needs heating and mixing together
• Dissolution improves at elevated temperature
• Reaction conditions require controlled heat
• You want one instrument instead of separate heating and stirring equipment

What Should You Check Before Buying a Magnetic Hotplate?

1. Required Sample Volume

A 100 mL routine process and a 10 L mixing application have very different operating requirements.

Confirm your normal and maximum working volume.

2. Required Temperature

Determine the temperature your actual sample needs to reach—not simply the highest temperature printed in the product specification.

3. Stirring Speed

Consider the viscosity and mixing characteristics of your samples.

4. Vessel Size

Check that your beakers, flasks or other compatible vessels fit safely on the working surface.

5. Temperature Monitoring

If monitoring the liquid itself matters, an external temperature sensor such as the PT100 can be particularly useful.

6. Application

Tell the supplier what you’re actually doing.

For example:

“We need to stir 5 L of solution at approximately 300 rpm while maintaining the sample near 80°C.”

That information is much more useful than simply asking for the “best hotplate.”

Basic Operating Workflow

Always follow the supplied manufacturer’s manual and your laboratory’s safety procedures.

A typical operating workflow is:

1. Place the instrument on a stable laboratory bench.
2. Position a compatible vessel on the ceramic surface.
3. Place the appropriate magnetic stir bar inside the vessel.
4. Begin stirring at a low speed.
5. Gradually increase speed until stable mixing is achieved.
6. Set heating according to the procedure.
7. Use the temperature probe correctly where required.
8. Monitor the sample throughout the process.
9. Reduce heating/stirring before shutdown.
10. Allow the hotplate to cool before cleaning or handling.

Avoid immediately starting at maximum speed, particularly with small vessels or low liquid volumes.

Care and Maintenance

Good maintenance helps preserve consistent laboratory operation.

After Use

Allow the plate to cool before cleaning.

Keep the Surface Clean

Remove compatible residues according to laboratory procedures rather than allowing spilt material to remain on the ceramic surface.

Inspect the Power Cable

Do not operate equipment with a visibly damaged cable or connector.

Check the PT100 Sensor

Inspect the probe and cable before use where external temperature monitoring is required.

Keep Liquids Away From Electrical Connections

Although HPS-series literature describes a protective shell design, users should still follow normal laboratory precautions around liquids and electrical equipment.

Important Safety Considerations

A hot plate magnetic stirrer HPS Series combines electrical power, moving magnetic components and high temperatures, so appropriate laboratory safety procedures are essential.

Users should:

• Wear suitable PPE for the substances being handled
• Use heat-resistant laboratory glassware where required
• Avoid touching the plate until it has cooled
• Keep incompatible or flammable materials away from heated surfaces
• Ensure the vessel remains stable during stirring
• Follow chemical-specific handling procedures
• Operate according to the manufacturer’s instructions

The instrument does not replace laboratory risk assessment or chemical safety procedures.

Why Choose Aston Instruments for HPS-20D in Bangladesh?

When purchasing professional laboratory equipment, selecting the correct configuration is as important as selecting the product itself.

Aston Instruments can assist buyers in reviewing requirements such as:

• Intended application
• Sample volume
• Required heating temperature
• Stirring requirements
• Compatible vessel size
• Accessories
• Product availability

This helps make the quotation process more useful than simply requesting a model number without application details.

Frequently Asked Questions About HPS-20D Magnetic Hotplate

What is the HPS-20D magnetic hotplate used for?

The HPS-20D magnetic hotplate is designed for laboratory applications requiring simultaneous heating and magnetic stirring. Typical uses include solution preparation, sample mixing, dissolution, reagent preparation and compatible laboratory reaction workflows.

What is the maximum stirring capacity of HPS-20D?

Published technical information specifies a maximum stirring capacity of 20 litres for the HPS-20D. Practical working capacity can vary depending on liquid viscosity, vessel geometry, stir-bar size and operating conditions.

What is the stirring speed range?

The published speed range is 0–1500 rpm, allowing users to adjust agitation according to the requirements of the sample. 

Does HPS-20D support an external temperature sensor?

Yes. Published HPS-series specifications list a PT100 external sensor for the HPS-20D model.

Can the HPS-20D heat and stir at the same time?

Yes. The HPS-20D belongs to a series designed to provide heating and magnetic stirring functions within the same laboratory instrument. 

What is the HPS-20D hotplate surface made from?

Published specifications identify the working surface as ceramic, with an approximate working area of 19 × 19 cm. 

Is the HPS-20D suitable for university laboratories?

It can be suitable for teaching and research laboratories where the required sample volume, temperature range and mixing conditions fall within the instrument’s specifications. The suitability should be confirmed against the intended experiment before purchase.

Where can I buy an HPS-20D magnetic hotplate in Bangladesh?

For customers searching for an HPS-20D magnetic stirrer or magnetic hotplate stirrer in Bangladesh, contact Aston Instruments in Dhaka to confirm current product availability, quotation, accessories and delivery details.